Pandora in Genres

I didn't think I would stray from Pandora, but there are plenty of other good music apps out there.
OurStage, DI Radio...and now Slacker.
I'm sure most people have heard of it before, but I was always too impressed by Pandora to check it out.
I really like Slacker so far, for me it just works, without all the babysitting. Pandora has its place, but Slacker does too.